Yamaha YST-SW150-80 User Manual

YST-SW150/80

Active Servo Processing Subwoofer System

Built-in 100W Power Amplifier (YST-SW150)

Built-in 70W Power Amplifier (YST-SW80)

2 Way Selectability for Connections

High Frequency Cut-off Point (HIGH CUT) Control

PHASE Switch

AUTO POWER ON/OFF Switch

Thank you for selecting this YAMAHA Subwoofer System.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF

OWNER’S MANUAL

ELECTRIC SHOCK, DO NOT REMOVE

COVER (OR BACK), NO USER-SERVICEABLE

PARTS INSIDE, REFER SERVICING TO

QUALIFIED SERVICE PERSONNEL.

IMPORTANT!

Please record the serial number of this

unit in the space below.

CONTENTS

Model:

• Explanation of Graphical Symbols

Safety Instructions

2

Serial No.:

The lightning flash with arrowhead

symbol, within an equilateral triangle,

Features...................................

4

The serial number is located on the rear

is intended to alert you to the

of the unit.

presence of uninsulated “dangerous

Placement................................

4

Retain this Owner’s Manual in a safe

voltage” within the product’s

enclosure that may be of sufficient

Connections

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place for future reference.

magnitude to constitute a risk of

electric shock to persons.

Controls and Their Functions .......

8

The exclamation point within an

Adjusting Volume .....................

9

WARNING

equilateral triangle is intended to alert

Active Servo Technology

11

TO REDUCE THE RISK OF FIRE OR

you to the presence of important

operating and maintenance

Troubleshooting ......................

12

ELECTRIC SHOCK, DO NOT EXPOSE

(servicing) instructions in the

Specifications .........................

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THIS UNIT TO RAIN OR MOISTURE.

literature accompanying the

appliance.

SAFETY INSTRUCTIONS

1Read Instructions – All the safety and operating instructions should be read before the unit is operated.

2Retain Instructions – The safety and operating instructions should be retained for future reference.

3Heed Warnings – All warnings on the unit and in the operating instructions should be adhered to.

4Follow Instructions – All operating and other instructions should be followed.

5Water and Moisture – The unit should not be used near water – for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.

6Carts and Stands – The unit should be used only with a cart or stand that is recommended by the manufacturer.

6A A unit and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the unit and cart combination to overturn.

7Wall or Ceiling Mounting – The unit

should be mounted to a wall or ceiling only as recommended by the manufacturer.

8Ventilation – The unit should be situated so that its location or position does not interfere with its proper ventilation. For example, the unit should not be situated on a bed, sofa, rug, or similar surface, that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.

9Heat – The unit should be situated away from heat sources such as radiators, stoves, or other appliances that produce heat.

10Power Sources – The unit should be connected to a power supply only of the type described in the operating instructions or as marked on the unit.

11Power-Cord Protection – Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the unit.

12Cleaning – The unit should be cleaned only as recommended by the manufacturer.

13Nonuse Periods – The power cord of the unit should be unplugged from the outlet when left unused for a long period of time.

14Object and Liquid Entry – Care should be taken so that objects do not fall into and liquids are not spilled into the inside of the unit.

15Damage Requiring Service – The unit should be serviced by qualified service personnel when:

A.The power-supply cord or the plug has been damaged; or

B.Objects have fallen, or liquid has been spilled into the unit; or

C.The unit has been exposed to rain; or

D.The unit does not appear to operate normally or exhibits a marked change in performance; or

E.The unit has been dropped, or the cabinet damaged.

16Servicing – The user should not attempt to service the unit beyond those means described in the operating instructions. All other servicing should be referred to qualified service personnel.

17Power Lines – An outdoor antenna should be located away from power lines.

18Grounding or Polarization – Precautions should be taken so that the grounding or polarization is not defeated.

CAUTION: READ THIS BEFORE OPERATING YOUR UNIT

1To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference.

2Install this unit in a cool, dry, clean place – away from windows, heat sources, sources of excessive vibration, dust, moisture and cold. Avoid sources of humming (transformers, motors). To prevent fire or electrical shock, do not expose the unit to rain or water.

3Never open the cabinet. If something drops into the set, contact your dealer.

4Do not use force on switches, controls or connection wires. When moving the unit, first disconnect the power plug and the wires connected to other equipment. Never pull the wire itself.

5Do not attempt to clean the unit with chemical solvents; this might damage the finish. Use a clean, dry cloth.

6Be sure to read the “TROUBLESHOOTING” section regarding common operating errors before concluding that the unit is faulty.

7When not planning to use this unit for long periods of time (ie., vacation, etc.), disconnect the AC power plug from the wall outlet.

8To prevent lightning damage, disconnect the AC power plug when there is an electrical storm.

9Since this unit has a built-in power amplifier, heat will radiate from the rear panel. Therefore, place the unit apart from the walls, allowing a space of at least 10 cm (3- 15/16”) above, behind and on the both sides of the unit. Also, do not position with the rear panel facing down on the floor or other surface.

10Super-bass frequencies reproduced by this unit may cause a turntable to generate a howling sound. In such a case, move this unit away from the turntable.

11This unit features a magnetically shielded design, but there is still a chance that placing it too close to a TV set might impair picture color. Should this happen, move this unit away from the TV set.

12If you hear distortion (i.e., unnatural, intermittent “rapping” or “hammering” sounds) coming from this unit, reduce the volume level. Extremely loud playing of a movie soundtrack’s low frequency, bass-heavy sounds or similarly loud popular music passages can damage this speaker system.

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FCC INFORMATION (for US customers only)

1.IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product.

2.IMPORTANT : When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA.

3.NOTE : This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class “B” digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices.

This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices.

Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit “OFF” and “ON”, please try to eliminate the problem by using one of the following measures:

Relocate either this product or the device that is being affected by the interference.

Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s.

In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to coaxial type cable.

If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you can not locate the appropriate retailer, please contact Yamaha Electronics Corp., U.S.A. 6660 Orangethorpe Ave, Buena Park, CA 90620.

The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.

We Want You Listening For A Lifetime (for US customers only)

YAMAHA and the Electronic Industries Association’s Consumer Electronics Group want you to get the most out of your equipment by playing it at a safe level. One that lets the sound come through loud and clear without annoying blaring or distortion – and, most importantly, without affecting your sensitive hearing. Since hearing damage from loud sounds is

often undetectable until it is too late, YAMAHA and the Electronic Industries Association’s Consumer Electronics Group recommend you to avoid prolonged exposure from excessive volume levels.

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FEATURES

•This subwoofer system employs YAMAHA Active Servo Technology which YAMAHA developed for reproducing higher quality super-bass sound. (Refer to page 11 for details on Active Servo Technology.)

This unit does not only enhance bass frequency response of sound output in your audio system, but, by reproducing the bass frequencies, the subwoofer permits your existing amplifier and speakers to operate under less strenuous conditions, improving overall system performance.

•This unit can be added easily to your existing audio system by connecting to either the speaker terminals or the line output (pin jack) terminals of the amplifier.

•For the effective use of this unit, this unit’s super-bass sound must be matched to the sounds of your main speakers. Therefore, this unit employs a continuously variable high frequency cut-off point (HIGH CUT) control. Moreover, the PHASE switch allows you to select the best sound quality for various listening conditions.

•A newly employed AUTO POWER ON/OFF switch saves you the trouble of pressing the POWER switch when turning the power on and off.

PLACEMENT
A		B	C
(	: subwoofer,	: main speaker)

If using one subwoofer, it is recommended to place it on the

outside of either the right or the left main speaker. (See fig. A .) If using two subwoofers, it is recommended to place them on the outside of each main speaker. (See fig. B .) The

placement shown in fig. C is also possible, however, if the subwoofer system is placed directly facing the wall, the bass effect may die because the sound from it and the sound reflected by the wall may cancel. To prevent this, face the subwoofer system obliquely to the wall as shown in fig. A or B .

One subwoofer will have a good effect on your audio system, however, the use of two subwoofers is recommended to obtain more presence.

Note

There may be a case that you cannot obtain enough superbass sounds from this unit when listening at the middle of the room. This is because “standing waves” have developed between two parallel walls and the bass sounds are being canceled.

In such a case, face the unit obliquely to the wall. It also may be necessary to break up the parallel surfaces by placing bookshelves etc. along the walls.

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